National Certified Addiction Counselor, Level 2 (NCAC II) Practice Exam Exam

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What is one effect of hallucinogens on the senses?

Increased heart rate
Altered vision
Decreased appetite
Improved motor skills

The correct answer is: Altered vision

Hallucinogens are substances that significantly alter a person's perception, mood, and cognitive processes. One of the primary effects of hallucinogens is the alteration of sensory experiences, particularly vision. Users often report heightened visual experiences, such as seeing vivid colors, patterns, and sometimes even hallucinations where they perceive things that are not present. This altered vision can include changes in the perception of depth, intensity of colors, and the appearance of shapes and forms. This sensory alteration is a hallmark of hallucinogenic substances and distinguishes them from other categories of drugs, making this response the most accurate in relation to the question.